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MICROPROCESSOR INSTRUCTION REFERENCE->NEGB

NEGB    Negate (twos complement) Accumulator B

00 - B -> B

Condition Code Register:

C  Set if result not equal to zero, else cleared
V  Set if result equals %1000000, else cleared
Z  Set if result Zero, else cleared
N  Set if result Negative, else cleared
I  Not affected
H  Not affected


    
Addressing modeAssembler syntax
Implied:NEGB